Remove model experiment maintenance

apps/web/src/lib/user/index.test.ts

@@ -100,10 +100,6 @@ import {
   microdollar_usage,
   microdollar_usage_metadata,
   system_prompt_prefix,
-  model_experiment,
-  model_experiment_variant,
-  model_experiment_variant_version,
-  model_experiment_request,
   stripe_dispute_actions,
   stripe_dispute_cases,
   stripe_early_fraud_warning_cases,
@@ -278,10 +274,6 @@ describe('User', () => {
     await db.delete(organization_user_limits);
     await db.delete(organization_memberships);
     await db.delete(free_model_usage);
-    await db.delete(model_experiment_request);
-    await db.delete(model_experiment_variant_version);
-    await db.delete(model_experiment_variant);
-    await db.delete(model_experiment);
     await db.delete(microdollar_usage_metadata);
     await db.delete(microdollar_usage);
     await db.delete(user_feedback);
@@ -5424,91 +5416,6 @@ describe('User', () => {
       expect(softDeletedCreator?.can_manage_credits).toBe(false);
     });
 
-    it('should preserve model experiment attribution and prompt hashes', async () => {
-      const user = await insertTestUser();
-      const usageId = randomUUID();
-      const createdAt = '2026-05-25T12:00:00.000Z';
-      const requestBodySha256 = 'a'.repeat(64);
-
-      await db.insert(microdollar_usage).values({
-        id: usageId,
-        kilo_user_id: user.id,
-        cost: 0,
-        input_tokens: 100,
-        output_tokens: 50,
-        cache_write_tokens: 0,
-        cache_hit_tokens: 0,
-        created_at: createdAt,
-        provider: 'custom',
-        model: 'partner/checkpoint-rc1',
-        requested_model: 'kilo/preview-experiment-test',
-        has_error: false,
-      });
-
-      const [experiment] = await db
-        .insert(model_experiment)
-        .values({
-          public_model_id: 'kilo/preview-experiment-test',
-          name: 'Soft-delete retention test',
-          status: 'active',
-          created_by_user_id: user.id,
-        })
-        .returning({ id: model_experiment.id });
-      if (!experiment) throw new Error('Failed to insert model experiment');
-
-      const [variant] = await db
-        .insert(model_experiment_variant)
-        .values({
-          experiment_id: experiment.id,
-          label: 'A',
-          weight: 1,
-        })
-        .returning({ id: model_experiment_variant.id });
-      if (!variant) throw new Error('Failed to insert model experiment variant');
-
-      const [variantVersion] = await db
-        .insert(model_experiment_variant_version)
-        .values({
-          variant_id: variant.id,
-          upstream: {
-            internal_id: 'partner/checkpoint-rc1',
-            base_url: 'https://partner.example.com/v1',
-          },
-          encrypted_api_key: { iv: 'iv', data: 'data', authTag: 'authTag' },
-          created_by: user.id,
-        })
-        .returning({ id: model_experiment_variant_version.id });
-      if (!variantVersion) throw new Error('Failed to insert model experiment variant version');
-
-      await db.insert(model_experiment_request).values({
-        usage_id: usageId,
-        variant_version_id: variantVersion.id,
-        allocation_subject: 'user',
-        client_request_id: 'client-message-id',
-        request_kind: 'chat_completions',
-        request_body_sha256: requestBodySha256,
-        was_truncated: false,
-        created_at: createdAt,
-      });
-
-      await softDeleteUser(user.id);
-
-      const [usage] = await db
-        .select()
-        .from(microdollar_usage)
-        .where(eq(microdollar_usage.id, usageId));
-      expect(usage?.kilo_user_id).toBe(user.id);
-
-      const [attribution] = await db
-        .select()
-        .from(model_experiment_request)
-        .where(eq(model_experiment_request.usage_id, usageId));
-      if (!attribution) throw new Error('Expected model experiment attribution to be retained');
-      expect(attribution.request_body_sha256).toBe(requestBodySha256);
-      expect(attribution.client_request_id).toBe('client-message-id');
-      expect(new Date(attribution.created_at).toISOString()).toBe(createdAt);
-    });
-
     it('should preserve Kilo Pass subscriptions and issuance chain', async () => {
       const user = await insertTestUser();
 

apps/web/src/lib/user/index.ts

@@ -1033,8 +1033,6 @@ export async function assertUserCanBeSoftDeleted(userId: string): Promise<void>
  * - stytch_fingerprints and provider safety identifiers (abuse detection)
  * - referral_code_usages (financial, references anonymized user)
  * - kiloclaw_subscriptions, kiloclaw_earlybird_purchases, kiloclaw_email_log (retained records)
- * - model_experiment_request (experiment attribution and prompt hashes retained
- *   under the dedicated experiment retention policy)
  * - kiloclaw_scheduled_action_targets (retained operational records;
  * - transactional_email_log (retained outbox marker, financial record;
  *   user_id FK references the anonymized kilocode_users row and optional

apps/web/src/tests/setup/workerSetup.ts

@@ -10,7 +10,6 @@ import {
   provisionComputeUsageChargePartitions,
   provisionExaUsageLogPartitions,
 } from '@/lib/usage-partitions';
-import { provisionModelExperimentRequestPartitions } from '@/lib/model-experiment-request-partitions';
 import { existsSync, writeFileSync, mkdirSync } from 'fs';
 import { join } from 'path';
 import { shutdownPosthog } from '@/lib/posthog';
@@ -75,15 +74,6 @@ beforeAll(async () => {
         `Failed to create compute usage charge partition ${name}: ${error instanceof Error ? error.message : String(error)}`
       );
     }
-
-    const { errors: modelExperimentPartitionErrors } =
-      await provisionModelExperimentRequestPartitions(testDb);
-    if (modelExperimentPartitionErrors.length > 0) {
-      const [{ name, error }] = modelExperimentPartitionErrors;
-      throw new Error(
-        `Failed to create model experiment request partition ${name}: ${error instanceof Error ? error.message : String(error)}`
-      );
-    }
   } finally {
     await testPool.end();
   }

apps/web/vercel.json

@@ -124,10 +124,6 @@
       "path": "/api/cron/usage-partition-maintenance",
       "schedule": "0 0 1 * *"
     },
-    {
-      "path": "/api/cron/model-experiment-request-partition-maintenance",
-      "schedule": "0 0 1 * *"
-    },
     {
       "path": "/api/cron/cleanup-free-model-usage",
       "schedule": "0 * * * *"